Best Strawberry Shortcake Recipe (With Buttermilk Biscuits)

Ingredients

• 2 cups all-purpose flour, (spooned into measuring cup and leveled-off)
• 3 tablespoons cornstarch
• 1 tablespoon baking powder
• ¼ teaspoon baking soda
• 2 tablespoons granulated sugar
• 1 teaspoon salt
• 10 tablespoons cold unsalted butter, (cut into ½-in (13-mm) chunks)
• ¾ cup buttermilk ((see note))
• 2 tablespoons turbinado sugar
• 2 lb strawberries (hulled and sliced ¼-inch (6-mm) thick)
• 3 tablespoons seedless raspberry jam
• ½ cup granulated sugar
• 1½ cups heavy cream
• 3 tablespoons granulated sugar